All that corn... although knee high at the time, most likely. But still you can toss things into a cornfield driving by or by walking into one. Instead he buries some of the clothes behind a building that may or may not be known to him. And why those particular items (weren't those only a few of the items they found, the bra and stockings)?
I wonder if this was part of some gang initiation? Maybe one he became affiliated with while in prison and stayed in contact with. Do a crime, get a badge. Abduct and rape a woman. And poor Linda was in the wrong place at the wrong time.
MOO